气候变化领域集成服务门户(CCPortal): Gaseous and Particulate Chlorine Emissions From Typical Iron and Steel Industry in China

CCPortal

DOI	10.1029/2020JD032729
	Gaseous and Particulate Chlorine Emissions From Typical Iron and Steel Industry in China
	Ding X.; Li Q.; Wu D.; Huo Y.; Liang Y.; Wang H.; Zhang J.; Wang S.; Wang T.; Ye X.; Chen J.
发表日期	2020
ISSN	2169897X
卷号	125 期号:15
英文摘要	The accurate estimation of chlorine emissions is urgently needed to evaluate regional and global atmospheric chlorination. This study first reports on the gaseous/particulate phases of chlorine emissions from typical integrated steel industries, including the major manufacturing processes (i.e., sintering, ironmaking, and steelmaking) and self-owned coal-fired power plant (CFPP). The concentration of chlorine species emitted from the ironmaking/steelmaking processes and the self-owned CFPP is very low (<1 mg/Nm3). Owing to the combustion of chlorine-rich sinter raw materials, the sintering processes emitted unexpectedly high concentrations of chlorinated substances, including chlorinated very short-lived CH3Cl, CH2Cl2, C2H5Cl, and C2H4Cl2. Flue gas desulfurization (FGD) systems equipped on the sintering processes can slightly reduce chlorinated hydrocarbons emissions (ClVOCs). However, the chlorine species bonded in filterable/condensable particulate states (ClFPM/ClCPM) can be removed by high efficient systems (with efficiencies of 64.8–94.1% for ClFPM and 97.3–98.5% for ClCPM), relying on employed FGD technology. Owing to rapid rate at which FGD systems have been installed in China, ClInorganic gases, ClCPM, and ClFPM emissions from the sintering and iron industry in 2016 were reduced by 75.3%, 82.7%, and 45.6%, respectively. Our results indicate that the current ultralow-emission equipment facilitates the reduction in chlorine emissions from iron and steel industry, but subsequent retrofits should give greater consideration to the simultaneous removal of ClVOCs. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	chlorinated VOCs; FGD; gaseous chlorine; particulate chlorine; sintering
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185859
作者单位	Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai, China; Shanghai Institute of Eco-Chongming (SIEC), Shanghai, China; State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai, China; Jiangsu Provincial Academy of Environmental Science, Nanjing, China; State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China; Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
推荐引用方式 GB/T 7714	Ding X.,Li Q.,Wu D.,et al. Gaseous and Particulate Chlorine Emissions From Typical Iron and Steel Industry in China[J],2020,125(15).
APA	Ding X..,Li Q..,Wu D..,Huo Y..,Liang Y..,...&Chen J..(2020).Gaseous and Particulate Chlorine Emissions From Typical Iron and Steel Industry in China.Journal of Geophysical Research: Atmospheres,125(15).
MLA	Ding X.,et al."Gaseous and Particulate Chlorine Emissions From Typical Iron and Steel Industry in China".Journal of Geophysical Research: Atmospheres 125.15(2020).